Engineering materials products are mainly used in highway, railway, water conservancy, electric power, water and soil conservation and environmental greening and other infrastructure areas, has been widely applied to tongsan expressway, shanghai-hangzhou inter-city railway, basis of high-speed railways, the qinghai-tibet railway, beijing-shanghai expressway, the beijing-shanghai high-speed railway, mansion deep railway, Shi Wuke designed, shanghai-nanjing intercity railway and hangzhou customer designed, an hundreds of national key projects such as railway; The company has successively won the bidding of various national key projects; Our products are well known by the engineering experts and the majority of users; We are using complete and scientific quality management system. Please trust us!